What is the title of Metallica's debut studio album?

Metallica’s debut studio album is Kill ’Em All. Released on July 25, 1983, it introduced the band’s early thrash-metal style and established the core lineup of James Hetfield, Lars Ulrich, Kirk Hammett, and Cliff Burton.

The album was recorded in May 1983 at Music America Studios in Rochester, New York, with producer Paul Curcio. It followed the underground success of the No Life ’til Leather demo and was released by the independent label Megaforce Records. Songs such as “Seek & Destroy,” “Whiplash,” and “Metal Militia” helped define Metallica’s fast, aggressive approach.

The title was originally intended to be Metal Up Your Ass, but the band changed it after distributors objected to the name and proposed artwork. Kill ’Em All was chosen as a replacement and became one of the defining album titles of early American thrash metal.

A frequent mix-up is calling Master of Puppets the debut because it is often regarded as Metallica’s breakthrough or most influential album. It was actually the band’s third studio album, following Ride the Lightning.